I hate when people abuse things like this. When this type of stuff happens, they wreck it for the people who are doing it by the books. I hate shady businesses.
There is no real reason i can see why they should be kept at all... the scientific reasoning Japan uses is just an excuse to catch them and send their meat back as a food source...
The rest are pretty much used for entertainment purposes only (i.e theme park attractions)...
Then there is also a small percentage that is used for creating certain products such as cosmetics or something similar...
Its a shame what humans are doing to the world and makes me often wonder what will be left of our oceans and forests in another 50years time at the rate we’re going...